Eight months after his cancer diagnosis was revealed, this royal tour is important for Charles - and the monarchy.

King Charles III arrives in Australia on Friday, beginning the most strenuous foreign trip since his cancer diagnosis and a tour showcasing busy barbecues, famed landmarks and pressing climate dangers.

King Charles is heading to Australia for his first royal visit since becoming king. Here's where you might catch a glimpse of royalty.

The eyes of the world will no doubt be on King Charles and Queen Camilla when the pair head to Australia at the end of this week – but few may realise that another royal cohort has been quietly visiting the country since last Thursday, flying mostly under the radar.

Republican sentiment in Australia is "at a very low ebb", Brandis said. "Australians will also appreciate that the King has been undergoing treatment for cancer, yet he has flown

King Charles going ahead with his royal tour of Australia despite still undergoing cancer treatment shows the significance of the monarch’s trip, according to King’s College London royal historian Dr George Gross.